Classic Outlook hit with more bugs Microsoft confirms CAA2000B, 4usqa, 49dvs sign-in issues May 14, 2025 by admin Tweet Microsoft has confirmed fresh bugs on Classic Outlook with new CAA2000B, 4usqa, and 49dvs sign-in errors. A workaround has been issued. Read more… Neowin Related Posts:Microsoft confirms Classic Outlook crashes on…Microsoft confirms Classic Outlook hangs when…Microsoft confirms Outlook crashes when emailing,…Typing on Classic Outlook is hogging PCs with high…Outlook won't let you sign in, Microsoft issues…